Mobile Vitals Tuning

Optimize Core Web Vitals for mobile devices, with special focus on low-end Android hardware, adaptive loading strategies, and device-tier-aware performance budgets.

Gold

v1.0.00 activationsSoftware EngineeringEngineeringadvanced

SupaScore

83.2

Research Quality (15%)

8.4

Prompt Engineering (25%)

8.3

Practical Utility (15%)

8.5

Completeness (10%)

8.2

User Satisfaction (20%)

8.3

Decision Usefulness (15%)

8.2

Best for

▸Optimizing LCP for budget Android phones with 2GB RAM and slow CPUs
▸Reducing INP spikes on mid-range devices during JavaScript hydration
▸Implementing device-tier-aware image loading strategies for e-commerce sites
▸Debugging CLS issues caused by web fonts on slow network connections
▸Creating adaptive loading patterns based on Device Memory API

What you'll get

●Device-tier matrix with specific performance budgets and optimization strategies for low/mid/high-end mobile devices with measurable targets
●Step-by-step implementation guide for adaptive loading patterns using Device Memory API with fallback strategies and code examples
●Prioritized optimization checklist with expected impact metrics for each Core Web Vitals metric across different mobile device categories

Not designed for ↓

×Desktop Core Web Vitals optimization or high-end device performance
×Native mobile app performance (iOS/Android apps, not web)
×Server-side performance optimization or backend API tuning
×SEO keyword optimization or content marketing strategies

Expects

Specific mobile performance issues with device context, current Core Web Vitals scores, and target user demographics including device capabilities and network conditions.

Returns

Prioritized optimization roadmap with device-tier-specific recommendations, performance budgets, and measurable improvement strategies with expected impact metrics.

Evidence Policy

Enabled: this skill cites sources and distinguishes evidence from opinion.

core-web-vitalsmobile-performancelcpinpclsadaptive-loadingperformance-budgetslighthousewebpagetestlow-end-devicesjavascript-optimizationimage-optimization

Research Foundation: 7 sources (3 official docs, 1 academic, 2 industry frameworks, 1 expert knowledge)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v1.0.02/16/2026

Initial release

Works well with

Bundle Analysis ExpertGold Core Web Vitals OptimizerGold Frontend Observability EngineerGold Image Optimization Pipeline ExpertGold Mobile UI Patterns ExpertGold

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Error Handling & Resilience EngineerGold Caching Strategy ArchitectGold Frontend State Machine ArchitectGold

Common Workflows

Mobile Performance Audit & Optimization

Complete mobile performance optimization workflow from initial audit through implementation and monitoring

mobile-vitals-tuning→Image Optimization Pipeline Expert→Bundle Analysis Expert→Frontend Observability Engineer

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